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  • NFPA 704

NFPA 704

BY GRAPHIC PRODUCTS STAFF

minute read

NFPA 704 Labels

NFPA 704 - Standard System for the Identification of the Hazards of Materials for Emergency Response, 2012 Edition

Chemicals are used and stored nearly everywhere. They are an everyday part of life to such a degree that it is easy to forget how hazardous some common chemicals can be. They may be highly flammable and toxic, as well as hazardous to both people and the environment. This can be a significant problem when firefighters and other emergency responders need to quickly evaluate and deal with unknown situations.

What is NFPA 704?

NFPA Drum Label

NFPA 704 is a supplementary labeling system for identifying hazardous materials specifically for emergency responders. Facilities are only required to use NFPA 704 labels when a federal, state, or local regulation or code requires them to be used.

NFPA 704 defines a visual system that enables emergency responders to quickly determine if a facility contains flammable, unstable, or hazardous chemicals, as well as understand the severity of those hazards.  NFPA 704 labels also show other characteristics of materials, such as unusual reactions to water. This is particularly important for firefighters because fighting a chemical fire with water can make the situation more dangerous.

These NFPA 704 hazard ratings are displayed using what is commonly referred to as the "NFPA hazard diamond."

NFPA Labeling Chart
This free quick reference quickly explains the NFPA diamond!

What Does the NFPA 704 Hazard Diamond Look Like?

NFPA Drum Label

The NFPA 704 diamond is divided into four smaller diamonds, each a different color. Each of the smaller diamonds provides information about a characteristic of the material:

  • Blue gives the health hazard rating
  • Red shows the flammability rating
  • Yellow provides the instability rating
  • White gives special precautions

The blue, red, and yellow diamonds will have a number between 0 and 4. These indicate the degree of hazard, with "0" indicating no hazard and "4" an extreme hazard. The higher the number, the greater the hazard.

Learn how to choose the right degree of hazard for your labels with the NFPA Diamond Label Chart by Graphic Products, and discover which Personal Protective Equipment (PPE) may be needed to stay safe in an emergency.

NFPA 704 - What About the White Diamond?

A numerical ranking system is not used in the white diamond. While you may see a variety of symbols in the white diamond area, such as the symbol for radioactivity, NFPA 704 only defines three symbols that must be used:

W indicates a material that reacts unusually strong with water, which means that the material will explode or burn violently when exposed to water. Some examples include:

  • Potassium
  • Magnesium
  • Rubidium
  • Cesium

OX indicates a material that reacts violently with oxygen. Typically, oxidizers make fires more intense and make them spread faster, and cause explosions without being exposed to sparks or flames. Common oxidizers include:

  • Ammonium nitrate
  • Ketone peroxides
  • Bromates
  • Chromates

SA indicates a simple asphyxiant gas that reduces or displaces oxygen. This warns emergency responders that they should wear respiratory protection or test the air before entering. Common asphyxiant gasses include:

  • Nitrogen
  • Helium
  • Neon
  • Argon
  • Krypton
  • Xenon

The white diamond is especially important because it helps draw attention to hazards that would not otherwise be apparent.

NFPA Diamond

Where is the NFPA 704 Hazard Diamond Used?

The NFPA 704 hazard diamond is a standard placard, sign, or label that identifies the level of chemical hazard at fixed locations, including warehouses, manufacturing facilities, construction sites, and other facilities. The NFPA 704 hazard diamond is often placed on storage containers, large propane tanks, and next to entryways, so responders will be aware of the hazards they may face.

While this supplementary system offers an effective way to assist emergency responders in identifying and responding to hazardous chemicals, facilities are required to follow regulations established by OSHA. According to OSHA NFPA labels may be used in addition to OSHA’s HazCom 2012 as long as they do not conflict with those requirements.

Solutions for NFPA 704 Labels

Take the next step in safety with effective visual communication. Graphic Products’ line of DuraLabel printers enable facilities to print lasting NFPA 704 labels, powerful safety messages, and more.

Create and print labels when and where you need them with DuraLabel Toro. For those big jobs, the standalone printer enables you to print continuously for three hours without a power cord or computer with the optional battery.

Make sure your facility communicates chemical hazards and keeps your workers safe. Download our NFPA Label Chart below.

NFPA Labeling Chart
This free quick reference quickly explains the NFPA diamond!

Related Resources

NFPA 704 Hazmat Diamond

NFPA 704 Diamond Label

Understand the purpose of the NFPA diamond label and what its ratings mean under the NFPA 704 standard.

Read
NFPA 704 vs HazCom 2012

NFPA 704 & HazCom 2012

Understand the differences between the NFPA 704 and HazCom 2012 systems, and see how to choose the right label format

Read
GHS & HazCom for Chemical Safety

GHS & HazCom for Chemical Safety

In 28 minutes, understand key elements of the GHS and HazCom 2012 approaches to chemical safety and how to implement them.

Watch
  • This free quick reference quickly explains the NFPA diamond!
  • This free HazCom training program will help you and your team get up to speed!
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